Pressure-regulating valve.



C. E. YATES.

PRESSURE HEGULATING VALVE.

APPLICATION man FEB-26.1917.

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siding at Detroit, in the county oi Wayne and State of Michigan, have invented certain new and useful Improvements in 'lP=ressure-Regulatin Valves, of which theiiollowfication, reiterence being had therein 'to the accompanying drawings.

This-invention relates to a pressure regulating valve andan arrangement thereof whereby it is peculiarly responsive to variations in baclr pressures and whereby the valve, when once adjusted, maintains itselit inoperative condition, there being no packing to deteriorate under use.

Theinvention consists in the matters hereinafter set forth, and more particularly An annular seat is formed in a suitable opening in the lower wall 5 of the casing whereby fluid passing through'the caslng, is deflected by a cross wall 6 into a tra basin 7 and thence through this aperture valve seat to the ,outlet.

Cooperating with the valve seat is a valve member 8 having a stem 11 connected to the outer end of the expansible chamber 10 insuch wise that upon the extension 01 that chamber the opening will be closed. The valve member 8 is here shown as spherical in shape.

Preferably the extensible chamber is 7 formed by a fluted or bellows wall 12 of hit suitable vsheet metal, the lower marginal portion of which is secured hermetically over openings 13 in the casing wall on the outlet side of the valve seat, as by bein impressed around a channeled annular ange 15 or the like.

A ball head 16 on the stem is secured in a screw plug 17 by a collar 18 that loosely encircles the stem and permits accurateadjustment between the parts, the spring tentpieci'fication of lbetters Patent.-

nvrian'ron. conrorronr, or wrtnrne'ron, nnnawann, a conronarron or rnnssnnnnnennarrne vatvn sion afforded the wall being thereby regulatable so that the valve'will close at a predetermined pressure. When once adjusted-,the parts are held in fixed position by solder20 or the like which prevents accidental rotation of the plug, while being easily melted by a blow-torch when the plug is.

desired to be removed or adjusted.

As a matter-of good'mechanical detail, the

wall of the chamber has a close lock joint as at 21 with the chamber head 19 and a drain plug 22 is provided for .emptying the trap 7. A shield 23 is also preferably secured detachably over the collapsible chamher to adord protection thereto.

As a result of this construction, a. valve is obtained that accurately regulates flow therethrough under the action ofback pressure on the outlet end of the valve, the adjustment afiorded by the construction permitting'close calibration. Furthermore, variations in arrangement between the parts caused by unequal movement of the chamber wall, or the like, do not edect the complete sealing of the seat-because of the universal joint connection of the stem with the chamher head and the use of the ball closure on the spherical-concave seat. Changes in tension are easily produced at any time by the use of a screw driver and blow torch, while the swivel connection between the stem and screw plug permits the grinding ot the stem without changing the adjustment by removing the trap 7 or even by introducing a tool through the plug opening 22. I Obviously, changes in the details of construction may be made without departing from the spirit of my invention and 1 do not care to limit myselt to any particular form or arrangement of parts.

1 claim as my invention 2- 1. In a device 01 the character described, in combination, a hollow casing having a valve seat therein, a valve member cooperating with said seat and having a stem, a longitudinally extensible chamber surrounding said stem andcommunicating with the Patented. du1y23,11h,'

dpation nled hebruary 26, 1912?. Serial No; 151,072;

to the other of the parts by a swivel joint to permit rotation of the. valve without changing the tension.

' 2.' In a device of the character described,

in combination, a hollow easing having a,

valve seat therein, a -circumferentially ,.cor

rugated longitudinally-expansible, cylindrical sheet metal casing secured to said casing in 'alinement with the axis of said seat and communicating with the interior of the-cas ing, and a rigid stem adjustably secured to the outer end of said chamber and formed with an enlargement constituting a closure for said seat.

3. In a device of the character described,

communicating with the interior of the -cas-' ing, the outer end Wall of said chamber having a circular aperture, a valve cooperating with said seat and having a stem extending into said chamber, and a connecting member rotatablymounted in said aperture and rotatably connected to said stem.

4; In a device of the character described, in combination, a hollow casing having a valve seat therein; a circumferentially-corrugated longitudinally-expansible, cylindrical sheet-metal casing secured to said casing in alinement with the axis of said-seat and communicating with the interior of thecasing, the outer end wall of said chamber having a circular aperture, a connecting member located in said aperture and adapted to be rotated therein, and a valve cooperating adjusted.

with said seat and having its stem operatively connected to said member, the joint 'between saidmember and the chamberwall being sealed with a fusible metal.

5.' A pressure regulating valve comprising a casing having-a duct therethrough and a valve seat between the ends thereof, anan- 'nular flange on the casing concentric with the valve seat, a chamber having a collapsible corrugated wall'secured at one end to the flange and provided at its opposite end with a head, a valve cooperating with said seat and having a rigid stem projecting into said chamber, and connecting means includ ing screw threads and aswivel between the end of the stem and the chamber head whereby the valve can be either ground or 6. A pressure regulating valve comprising a casing having a duct therethrough with an annular valve seat between the ends thereof, a collapsible chamber having a fluted Wall extensible axiallyasealed at the lower end to the casing and provided with a head at the upper end,the chamber being in communication with the duct on the outlet side of the seat, a valve member cooperating with the under side of the seat, a stem extending upwardly in the chamber, an adjustable screw cap in the head having ball-and-socket connections with the stem and means for sealing the cap in adjusted position.

In testimony whereof I afiix my signature in the presence of two Witnesses.

CHARLES E. YATES. Witnesses:

O. R. STIGKNEY, .A. M. .DORR. 

